<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>test1</title>
	<link rel="stylesheet" href="test2.css">
</head>
<body>
	<div class="box-set">
		<div class="box">BOX 1</div>
		<div class="box">BOX 2</div>
		<div class="box">BOX 3</div>

	</div>
</body>
</html>